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/* -*- mode: c; c-basic-offset: 3 -*- */
/*
* Copyright 2000 Gareth Hughes
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Authors:
* Gareth Hughes <gareth@valinux.com>
* Leif Delgass <ldelgass@retinalburn.net>
* Jos� Fonseca <j_r_fonseca@yahoo.co.uk>
*/
#include "main/glheader.h"
#include "main/imports.h"
#include "main/context.h"
#include "main/macros.h"
#include "mach64_context.h"
#include "mach64_ioctl.h"
#include "mach64_tris.h"
#include "mach64_tex.h"
static void mach64SetTexImages( mach64ContextPtr mmesa,
const struct gl_texture_object *tObj )
{
mach64TexObjPtr t = (mach64TexObjPtr) tObj->DriverData;
struct gl_texture_image *baseImage = tObj->Image[0][tObj->BaseLevel];
int totalSize;
assert(t);
assert(baseImage);
if ( MACH64_DEBUG & DEBUG_VERBOSE_API )
fprintf( stderr, "%s( %p )\n", __FUNCTION__, tObj );
switch (baseImage->TexFormat) {
case MESA_FORMAT_ARGB8888:
t->textureFormat = MACH64_DATATYPE_ARGB8888;
break;
case MESA_FORMAT_ARGB4444:
t->textureFormat = MACH64_DATATYPE_ARGB4444;
break;
case MESA_FORMAT_RGB565:
t->textureFormat = MACH64_DATATYPE_RGB565;
break;
case MESA_FORMAT_ARGB1555:
t->textureFormat = MACH64_DATATYPE_ARGB1555;
break;
case MESA_FORMAT_RGB332:
t->textureFormat = MACH64_DATATYPE_RGB332;
break;
case MESA_FORMAT_RGB888:
t->textureFormat = MACH64_DATATYPE_RGB8;
break;
case MESA_FORMAT_CI8:
t->textureFormat = MACH64_DATATYPE_CI8;
break;
case MESA_FORMAT_YCBCR:
t->textureFormat = MACH64_DATATYPE_YVYU422;
break;
case MESA_FORMAT_YCBCR_REV:
t->textureFormat = MACH64_DATATYPE_VYUY422;
break;
default:
_mesa_problem(mmesa->glCtx, "Bad texture format in %s", __FUNCTION__);
};
totalSize = ( baseImage->Height *
baseImage->Width *
_mesa_get_format_bytes(baseImage->TexFormat) );
totalSize = (totalSize + 31) & ~31;
t->base.totalSize = totalSize;
t->base.firstLevel = tObj->BaseLevel;
t->base.lastLevel = tObj->BaseLevel;
/* Set the texture format */
if ( ( baseImage->_BaseFormat == GL_RGBA ) ||
( baseImage->_BaseFormat == GL_ALPHA ) ||
( baseImage->_BaseFormat == GL_LUMINANCE_ALPHA ) ) {
t->hasAlpha = 1;
} else {
t->hasAlpha = 0;
}
t->widthLog2 = baseImage->WidthLog2;
t->heightLog2 = baseImage->HeightLog2;
t->maxLog2 = baseImage->MaxLog2;
}
static void mach64UpdateTextureEnv( struct gl_context *ctx, int unit )
{
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
GLint source = mmesa->tmu_source[unit];
const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[source];
const struct gl_texture_object *tObj = texUnit->_Current;
const GLenum format = tObj->Image[0][tObj->BaseLevel]->_BaseFormat;
GLuint s = mmesa->setup.scale_3d_cntl;
if ( MACH64_DEBUG & DEBUG_VERBOSE_API ) {
fprintf( stderr, "%s( %p, %d )\n",
__FUNCTION__, ctx, unit );
}
/* REPLACE MODULATE DECAL GL_BLEND
*
* ALPHA C = Cf C = Cf undef C = Cf
* A = At A = AfAt A = AfAt
*
* LUMINANCE C = Ct C = CfCt undef C = Cf(1-Ct)+CcCt
* A = Af A = Af A = Af
*
* LUMINANCE_ALPHA C = Ct C = CfCt undef C = Cf(1-Ct)+CcCt
* A = At A = AfAt A = AfAt
*
* INTENSITY C = Ct C = CfCt undef C = Cf(1-Ct)+CcCt
* A = At A = AfAt A = Af(1-At)+AcAt
*
* RGB C = Ct C = CfCt C = Ct C = Cf(1-Ct)+CcCt
* A = Af A = Af A = Af A = Af
*
* RGBA C = Ct C = CfCt C = Cf(1-At)+CtAt C = Cf(1-Ct)+CcCt
* A = At A = AfAt A = Af A = AfAt
*/
if ( unit == 0 ) {
s &= ~MACH64_TEX_LIGHT_FCN_MASK;
/* Set the texture environment state
* Need to verify these are working correctly, but the
* texenv Mesa demo seems to work.
*/
switch ( texUnit->EnvMode ) {
case GL_REPLACE:
switch ( format ) {
case GL_ALPHA:
case GL_LUMINANCE_ALPHA:
case GL_INTENSITY:
/* Not compliant - can't get At */
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
default:
s |= MACH64_TEX_LIGHT_FCN_REPLACE;
}
break;
case GL_MODULATE:
switch ( format ) {
case GL_ALPHA:
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
case GL_RGB:
case GL_LUMINANCE:
/* These should be compliant */
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
case GL_LUMINANCE_ALPHA:
case GL_INTENSITY:
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
case GL_RGBA:
/* Should fallback when blending enabled for complete compliance */
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
default:
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
}
break;
case GL_DECAL:
switch ( format ) {
case GL_RGBA:
s |= MACH64_TEX_LIGHT_FCN_ALPHA_DECAL;
break;
case GL_RGB:
s |= MACH64_TEX_LIGHT_FCN_REPLACE;
break;
case GL_ALPHA:
case GL_LUMINANCE_ALPHA:
/* undefined - disable texturing, pass fragment unmodified */
/* Also, pass fragment alpha instead of texture alpha */
s &= ~MACH64_TEX_MAP_AEN;
s |= MACH64_TEXTURE_DISABLE;
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
case GL_LUMINANCE:
case GL_INTENSITY:
/* undefined - disable texturing, pass fragment unmodified */
s |= MACH64_TEXTURE_DISABLE;
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
default:
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
}
break;
case GL_BLEND:
/* GL_BLEND not supported by RagePRO, use software */
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
case GL_ADD:
case GL_COMBINE:
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
break;
default:
s |= MACH64_TEX_LIGHT_FCN_MODULATE;
}
if ( mmesa->setup.scale_3d_cntl != s ) {
mmesa->setup.scale_3d_cntl = s;
mmesa->dirty |= MACH64_UPLOAD_SCALE_3D_CNTL;
}
} else {
/* blend = 0, modulate = 1 - initialize to blend */
mmesa->setup.tex_cntl &= ~MACH64_COMP_COMBINE_MODULATE;
/* Set the texture composite function for multitexturing*/
switch ( texUnit->EnvMode ) {
case GL_BLEND:
/* GL_BLEND not supported by RagePRO, use software */
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
mmesa->setup.tex_cntl |= MACH64_COMP_COMBINE_MODULATE;
break;
case GL_MODULATE:
/* Should fallback when blending enabled for complete compliance */
mmesa->setup.tex_cntl |= MACH64_COMP_COMBINE_MODULATE;
break;
case GL_REPLACE:
switch ( format ) {
case GL_ALPHA:
mmesa->setup.tex_cntl |= MACH64_COMP_COMBINE_MODULATE;
break;
default: /* not supported by RagePRO */
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
mmesa->setup.tex_cntl |= MACH64_COMP_COMBINE_MODULATE;
}
break;
case GL_DECAL:
switch ( format ) {
case GL_ALPHA:
case GL_LUMINANCE:
case GL_LUMINANCE_ALPHA:
case GL_INTENSITY:
/* undefined, disable compositing and pass fragment unmodified */
mmesa->setup.tex_cntl &= ~MACH64_TEXTURE_COMPOSITE;
break;
default: /* not supported by RagePRO */
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
mmesa->setup.tex_cntl |= MACH64_COMP_COMBINE_MODULATE;
}
break;
case GL_ADD:
case GL_COMBINE:
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
mmesa->setup.tex_cntl |= MACH64_COMP_COMBINE_MODULATE;
break;
default:
mmesa->setup.tex_cntl |= MACH64_COMP_COMBINE_MODULATE;
}
}
}
static void mach64UpdateTextureUnit( struct gl_context *ctx, int unit )
{
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
int source = mmesa->tmu_source[unit];
const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[source];
const struct gl_texture_object *tObj = ctx->Texture.Unit[source]._Current;
mach64TexObjPtr t = tObj->DriverData;
GLuint d = mmesa->setup.dp_pix_width;
GLuint s = mmesa->setup.scale_3d_cntl;
assert(unit == 0 || unit == 1); /* only two tex units */
if ( MACH64_DEBUG & DEBUG_VERBOSE_API ) {
fprintf( stderr, "%s( %p, %d ) enabled=0x%x 0x%x\n",
__FUNCTION__, ctx, unit, ctx->Texture.Unit[0]._ReallyEnabled,
ctx->Texture.Unit[1]._ReallyEnabled);
}
if (texUnit->_ReallyEnabled & (TEXTURE_1D_BIT | TEXTURE_2D_BIT)) {
assert(t); /* should have driver tex data by now */
/* Fallback if there's a texture border */
if ( tObj->Image[0][tObj->BaseLevel]->Border > 0 ) {
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
return;
}
/* Upload teximages */
if (t->base.dirty_images[0]) {
mach64SetTexImages( mmesa, tObj );
mmesa->dirty |= (MACH64_UPLOAD_TEX0IMAGE << unit);
}
/* Bind to the given texture unit */
mmesa->CurrentTexObj[unit] = t;
t->base.bound |= (1 << unit);
if ( t->base.memBlock )
driUpdateTextureLRU( (driTextureObject *) t ); /* XXX: should be locked! */
/* register setup */
if ( unit == 0 ) {
d &= ~MACH64_SCALE_PIX_WIDTH_MASK;
d |= (t->textureFormat << 28);
s &= ~(MACH64_TEXTURE_DISABLE |
MACH64_TEX_CACHE_SPLIT |
MACH64_TEX_BLEND_FCN_MASK |
MACH64_TEX_MAP_AEN);
if ( mmesa->multitex ) {
s |= MACH64_TEX_BLEND_FCN_TRILINEAR | MACH64_TEX_CACHE_SPLIT;
} else if ( t->BilinearMin ) {
s |= MACH64_TEX_BLEND_FCN_LINEAR;
} else {
s |= MACH64_TEX_BLEND_FCN_NEAREST;
}
if ( t->BilinearMag ) {
s |= MACH64_BILINEAR_TEX_EN;
} else {
s &= ~MACH64_BILINEAR_TEX_EN;
}
if ( t->hasAlpha ) {
s |= MACH64_TEX_MAP_AEN;
}
mmesa->setup.tex_cntl &= ~(MACH64_TEXTURE_CLAMP_S |
MACH64_TEXTURE_CLAMP_T |
MACH64_SECONDARY_STW);
if ( t->ClampS ) {
mmesa->setup.tex_cntl |= MACH64_TEXTURE_CLAMP_S;
}
if ( t->ClampT ) {
mmesa->setup.tex_cntl |= MACH64_TEXTURE_CLAMP_T;
}
mmesa->setup.tex_size_pitch |= ((t->widthLog2 << 0) |
(t->maxLog2 << 4) |
(t->heightLog2 << 8));
} else {
/* Enable texture mapping mode */
s &= ~MACH64_TEXTURE_DISABLE;
d &= ~MACH64_COMPOSITE_PIX_WIDTH_MASK;
d |= (t->textureFormat << 4);
mmesa->setup.tex_cntl &= ~(MACH64_COMP_ALPHA |
MACH64_SEC_TEX_CLAMP_S |
MACH64_SEC_TEX_CLAMP_T);
mmesa->setup.tex_cntl |= (MACH64_TEXTURE_COMPOSITE |
MACH64_SECONDARY_STW);
if ( t->BilinearMin ) {
mmesa->setup.tex_cntl |= MACH64_COMP_BLEND_BILINEAR;
} else {
mmesa->setup.tex_cntl &= ~MACH64_COMP_BLEND_BILINEAR;
}
if ( t->BilinearMag ) {
mmesa->setup.tex_cntl |= MACH64_COMP_FILTER_BILINEAR;
} else {
mmesa->setup.tex_cntl &= ~MACH64_COMP_FILTER_BILINEAR;
}
if ( t->hasAlpha ) {
mmesa->setup.tex_cntl |= MACH64_COMP_ALPHA;
}
if ( t->ClampS ) {
mmesa->setup.tex_cntl |= MACH64_SEC_TEX_CLAMP_S;
}
if ( t->ClampT ) {
mmesa->setup.tex_cntl |= MACH64_SEC_TEX_CLAMP_T;
}
mmesa->setup.tex_size_pitch |= ((t->widthLog2 << 16) |
(t->maxLog2 << 20) |
(t->heightLog2 << 24));
}
if ( mmesa->setup.scale_3d_cntl != s ) {
mmesa->setup.scale_3d_cntl = s;
mmesa->dirty |= MACH64_UPLOAD_SCALE_3D_CNTL;
}
if ( mmesa->setup.dp_pix_width != d ) {
mmesa->setup.dp_pix_width = d;
mmesa->dirty |= MACH64_UPLOAD_DP_PIX_WIDTH;
}
}
else if (texUnit->_ReallyEnabled) {
/* 3D or cube map texture enabled - fallback */
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_TRUE );
}
else {
/* texture unit disabled */
}
}
/* Update the hardware texture state */
void mach64UpdateTextureState( struct gl_context *ctx )
{
mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
if ( MACH64_DEBUG & DEBUG_VERBOSE_API ) {
fprintf( stderr, "%s( %p ) en=0x%x 0x%x\n",
__FUNCTION__, ctx, ctx->Texture.Unit[0]._ReallyEnabled,
ctx->Texture.Unit[1]._ReallyEnabled);
}
/* Clear any texturing fallbacks */
FALLBACK( mmesa, MACH64_FALLBACK_TEXTURE, GL_FALSE );
/* Unbind any currently bound textures */
if ( mmesa->CurrentTexObj[0] ) mmesa->CurrentTexObj[0]->base.bound = 0;
if ( mmesa->CurrentTexObj[1] ) mmesa->CurrentTexObj[1]->base.bound = 0;
mmesa->CurrentTexObj[0] = NULL;
mmesa->CurrentTexObj[1] = NULL;
/* Disable all texturing until it is known to be good */
mmesa->setup.scale_3d_cntl |= MACH64_TEXTURE_DISABLE;
mmesa->setup.scale_3d_cntl &= ~MACH64_TEX_MAP_AEN;
mmesa->setup.tex_cntl &= ~MACH64_TEXTURE_COMPOSITE;
mmesa->setup.tex_size_pitch = 0x00000000;
mmesa->tmu_source[0] = 0;
mmesa->tmu_source[1] = 1;
mmesa->multitex = 0;
if (ctx->Texture._EnabledUnits & 0x2) {
/* unit 1 enabled */
if (ctx->Texture._EnabledUnits & 0x1) {
/* units 0 and 1 enabled */
mmesa->multitex = 1;
mach64UpdateTextureUnit( ctx, 0 );
mach64UpdateTextureEnv( ctx, 0 );
mach64UpdateTextureUnit( ctx, 1 );
mach64UpdateTextureEnv( ctx, 1 );
} else {
mmesa->tmu_source[0] = 1;
mmesa->tmu_source[1] = 0;
mach64UpdateTextureUnit( ctx, 0 );
mach64UpdateTextureEnv( ctx, 0 );
}
} else if (ctx->Texture._EnabledUnits & 0x1) {
/* only unit 0 enabled */
mach64UpdateTextureUnit( ctx, 0 );
mach64UpdateTextureEnv( ctx, 0 );
}
mmesa->dirty |= (MACH64_UPLOAD_SCALE_3D_CNTL |
MACH64_UPLOAD_TEXTURE);
}
/* Due to the way we must program texture state into the Rage Pro,
* we must leave these calculations to the absolute last minute.
*/
void mach64EmitTexStateLocked( mach64ContextPtr mmesa,
mach64TexObjPtr t0,
mach64TexObjPtr t1 )
{
drm_mach64_sarea_t *sarea = mmesa->sarea;
drm_mach64_context_regs_t *regs = &(mmesa->setup);
/* for multitex, both textures must be local or AGP */
if ( t0 && t1 )
assert(t0->heap == t1->heap);
if ( t0 ) {
if (t0->heap == MACH64_CARD_HEAP) {
#if ENABLE_PERF_BOXES
mmesa->c_texsrc_card++;
#endif
mmesa->setup.tex_cntl &= ~MACH64_TEX_SRC_AGP;
} else {
#if ENABLE_PERF_BOXES
mmesa->c_texsrc_agp++;
#endif
mmesa->setup.tex_cntl |= MACH64_TEX_SRC_AGP;
}
mmesa->setup.tex_offset = t0->bufAddr;
}
if ( t1 ) {
mmesa->setup.secondary_tex_off = t1->bufAddr;
}
memcpy( &sarea->context_state.tex_size_pitch, ®s->tex_size_pitch,
MACH64_NR_TEXTURE_REGS * sizeof(GLuint) );
}
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